Smoothed standard deviation changing rate. Interpretation of the indicator values:
The indicator uses the SmoothAlgorithms.mqh library classes (copy it to <terminal_data_folder>\MQL5\Include). The classes were described in detail in the Averaging Price Series for Intermediate Calculations Without Using Additional Buffers article.

Fig.1. Indicator XStdDevSpeed
MetaQuotes Ltd tarafından Rusçadan çevrilmiştir.
Orijinal kod: https://www.mql5.com/ru/code/20655
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Indicator XStdDevSpeed with the timeframe selection option in input parameters.
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